Improvement in dish-washing machines



x s. WALKER. Dish-Washing Machine.

P tented Nov. 25,1879.

may/@556 N PETERS. PNOYO-LHMQGRAPHEH. WASHINGTON. u C

UNITED STATES PATENT JOFTIOE.

' SAMUEL WALKER, OF OHRISTIANA, PENNSYLVANIA.

IMPROVEMENT IN DISH-WASHING MACHINES.

Specification forming part of Letters Patent. No. 222,103, dated November 25, 1879 application filed February 26, 1879.

To all whom it may concern:

Be it known thatl, SAMUEL WALKER, of Christiana, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Dishashing Machines; and I do hereby declare that the following is a full, clear, andexact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of my invention is to provide a dishwashin'g machine that will do the work by forcing a current or counter-currents of hot water against thearticles as they are rotated in opposite directions in the dish-receptacle.

My invention consists of a cylindricalshaped boiler to set on a range or furnace, to contain the water, combined with an internal vessel or dish-receptacle having a continuous wall with large openings and outwardly-projecting and oppositely-inclined wings, so arranged as to produce the desired currents.

1n the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a vertical longitudinal section of a device embodying my invention. Fig. 2 is a transverse section of the same.

a to represent the boiler with its arched cover g, which is made to fit the top of the boiler, to prevent the escape of steam, by the rubber band It It, encircling the upper end, where it is kept in place by suitable stops formed for the purpose.

1) represents the dish-receptacle, which is provided with casters 0 e and a center bearing, f, which rests in the cup-shaped stepd. A central stem, 0, projects from the top of the dish-receptacle through the flange 2 secured to cover y, where it has its bearing, and supports it in a vertical position. An aperture is formed in said stem to insert lever 70.

1 construct my dish-receptacle with a continuous wall, I), in which I form longitudinal openings with outwardly-projecting inclined win gs. Said wings stand in opposite directions on the two opposite sides of the vessel, so that as it is rotated or turned part the way round the water will be drawn in at the one side and 4 made to escape at the opposite side. Thus,

I of the steam will lift the by the rapid movement and sudden reversing of the motion of the dish-receptacle, a current is created, which will extend through the mass of dishes and cleanse the same.

I do not make my openings close to each other, but leave a portion of the wall standing between each. I also leave a portion or sec tion of the wall standing at opposite sides of the vessel without openings or wings formed therein, so that the wings may more freely take in the water and allow its escape, and thereby more effectually cleanse the dishes.

0 c c c 0 represent the longitudinal openings and the flared lips or wings, as shown in Fig. 2, and which stand in opposite directions on the opposite sides of said receptacle.

It will be evident that the rapid agitation of the hot water when thus confined will generate a considerable pressure of steam, which will tend to force the cover g from its place and to provide for such contingency I construct the valve H ;and also, to hold the cover 7 g down, flange i is secured to the cover and extends up to the lever, so that the pressure valve and allow the steam to escape before the cover is forced above the boiler..

The dome shape of the cover provides room for the steam in case the water is allowed to boil.

The ring It is so constructed that a cord may be used over a pulley to facilitate handling the dish-receptacle with its contents.

I am aware of the patent of W. L. Thompson, No. 119,953 October 17, 1871, and I do not claim a dish-receptacle constructed without walls or partitions left standing between the wings.

What I claim is- The combination,in adish-washin g machine, of boiler a, arched. cover 9, With flange i, packing h, with receptacle b, having a continuous wall, I), with longitudinal openings and outwardly-projecting oppositely-inclined wings 0, substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence, of

two witnesses.

SAMUEL WALKER.

W tnesses:

SAML. L. DENNEY, J 0s. 0. WORK. 

